C语言-根据信号处理

Posted 2021-12-03 爱吃香蕉的猴子0000

Hello, 大家好，我是爱吃香蕉的猴子，记录一个linux很实用的程序，根据监听linux上的一些信号

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#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>

void diediedie(int sig);
int catch_signal(int sig, void(*handler)(int));
int main(void)
{
    if (catch_signal(SIGINT, diediedie) == -1) 
    {
        fprintf(stderr, "Can't map the handler"); 
        exit(2);
    }
    char name[30];
    printf("Enter your name :");
    fgets(name, 30, stdin);
    printf("Hello %s\\n", name);

    return 0;
}

void diediedie(int sig)
{
    puts("\\n");
    puts("Goodbye cruel world ...\\n");
    exit(1);
}

int catch_signal(int sig, void(*handler)(int)) 
{
    struct sigaction action;
    action.sa_handler = handler;
    sigemptyset(&action.sa_mask);
    action.sa_flags = 0;
    return sigaction(sig, &action, NULL);
}

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